Urban games, please have a look at Cities: Skylines development team and how they handle everything. That is examplary way of taking care of customer relations.
Are you sure that’s what you want? That’s the same team who gave us CIM2! That game had at least as many bugs as Train-Fever when first launched. The difference was that instead of fixing them like the Urban Games team is doing, they spent their time making expensive DLCs to make even more money. Then they abandoned the game to move on to Cities Skylines so they could make even more money!
Look for yourself : http://forum.paradoxplaza.com/forum/showthread.php?816972-I-feel-betrayed